You may have noticed some news around these weird sounding devices that measure “arousal”. They don’t. But they do measure changes in penile shape, and as such, can give users a rough estimate – in a non-invasive way – of how much blood is flowing into the penis during erection. »5/21/15 10:35pm 5/21/15 10:35pm

Money comes in every size, shape, and color imaginable. But your credit cards — though they may be remarkably different in how they work — are probably remarkably consistent in terms of size. Why is that? »12/18/14 4:20pm 12/18/14 4:20pm

You might be forgiven for thinking that what you're seeing here is a very well-constructed toy. But it's also a fully operational watt balance, the tool that's used to set the standard measurement of a kilogram. »12/10/14 11:49am 12/10/14 11:49am

For thousands of years, we've divided days into 24 hours, hours into 60 minutes, and minutes into 60 seconds. But why do we have to do that? Here's the story of the one gloriously failed attempt to decimalize time. »2/17/12 1:43pm 2/17/12 1:43pm

Not everything can be measured in meters, seconds, or the size of a breadbox. Sometimes, to quantify something, extreme and silly steps have to be taken. Find out how big Siberia is, and how long a beard grows in a second. »8/05/11 10:00am 8/05/11 10:00am